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How many pieces of mail does USPS move?

Did you know that the United States Postal Service processes more than 550 million pieces of mail each day? Find out how many pieces of mail the Post Office moves and how much money it takes in with this USPS by-the-numbers breakdown.

In 2011 (the last year revenue numbers were released), the Post Office took in $66 billion in revenue.

According to its website, that revenue is spread across 167.9 billion pieces of processed mail.

That means on average, postal workers process about 554 million pieces of mail daily.

Which means 23 million pieces of mail are moved each hour.

And 384,000 pieces are moved every minute.

Which means every second, the Post Office processes about 6,400 pieces of mail.

The USPS handles about 40 percent of the world's mail volume.

The post office employs 546,000 career employees.

The postal workforce is paid about $1.9 billion every two weeks in salaries and benefits.

The workforce puts in about 34 million hours in that time.

The post office said they handled about 39.9 million address changes in 2011.

USPS took in about $236 million in online stamp and retail sales. Meanwhile, total revenue from Click-N-Ship label purchases in 2011 adds up to 436 million.